1. Genus Catillopecten Iredale, 1939
2. Genus Cyclopecten A. E. Verrill, 1897
3. Genus Parvamussium Sacco, 1897
4. Genus Propeamussium De Gregorio, 1884
5. Genus Similipecten Winckworth, 1932
6. Genus Actinula [sic] accepted as Arctinula Thiele, 1934 accepted as Similipecten Winckworth, 1932 (misspelling)
7. Genus Arctinula Thiele, 1934 accepted as Similipecten Winckworth, 1932 (synonym)
8. Genus Bathyamussium Habe, 1951 accepted as Propeamussium De Gregorio, 1884 (unaccepted > junior subjective synonym)
9. Genus Bathypecten Schein-Fatton, 1985 accepted as Catillopecten Iredale, 1939 (synonym )
10. Genus Ctenamusium Iredale, 1929 accepted as Parvamussium Sacco, 1897 (synonym)
11. Genus Ctenamussium [sic] accepted as Ctenamusium Iredale, 1929 accepted as Parvamussium Sacco, 1897 (incorrect subsequent spelling)
12. Genus Flavamussium T. Habe, 1951 accepted as Propeamussium De Gregorio, 1884 (unaccepted > junior subjective synonym)
13. Genus Glyptamusium Iredale, 1939 accepted as Parvamussium Sacco, 1897 (synonym)
14. Genus Luteamussium Oyama, 1951 accepted as Propeamussium De Gregorio, 1884 (synonym)
15. Genus Micramussium Oyama, 1951 accepted as Propeamussium De Gregorio, 1884 (synonym)
16. Genus Paramusium A. E. Verrill, 1897 accepted as Propeamussium De Gregorio, 1884 (unaccepted > junior subjective synonym, synonym)
17. Genus Paramussium [sic] accepted as Parvamussium Sacco, 1897 (unaccepted > misspelling - incorrect subsequent spelling)
18. Genus Polynemamussium Habe, 1951 accepted as Parvamussium Sacco, 1897 (synonym)
19. Genus Propeamusium [sic] accepted as Propeamussium De Gregorio, 1884 (unaccepted > misspelling - incorrect subsequent spelling)
20. Genus Squamamussium Oyama, 1944 accepted as Parvamussium Sacco, 1897 (synonym)
21. Genus Variamussium Sacco, 1897 accepted as Parvamussium Sacco, 1897 (synonym)

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